Question

2x^2-17x-30 .factorise​

Answer 1

2

2

+

3

−

2

0

−

3

0

2x^{2}+3x-20x-30

2x2+3x−20x−30

(

2

+

3

)

−

1

0

(

2

+

3

)

Answer 2

$\sf\underline\purple{Solution:-}$

$\sf 2x²-17x-30$

$\sf 2x²-20x+3x-30=0$

$\sf 2x(x-10)+3(x-10)=0$

$\sf (2x+3)(x-10)=0$

$\sf\red{ x=\frac{-3}{2} \:\: or \:\: x=10}$